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Answer key to radiometric dating assignment

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Time factors of millions and billions of years is difficult even for adults to comprehend.However, "relative" dating or time can be an easy concept for students to learn.Seriation uses the assumption that once a tool was developed, its use would become more widespread.

Once they are able to manipulate the cards into the correct sequence, they are asked to do a similar sequencing activity using fossil pictures printed on "rock layer" cards.

Geologists use those radioactive isotopes to date volcanic ash or granite formations like the giant Half Dome in Yosemite National Park.

Yes, radioactive isotopes present in rocks and other ancient material decay atom by atom at a steady rate, much as clocks tick time away.

Part 1- Lab Manual The exercises that follow are adaptations of the Plate Tectonics exercises contained in the lab manual.

Note that the number that precedes the text of the question corresponds to the identifying number of that question in the lab manual. (Question A2, Figure 2.7) According to the oceanic geothermal gradient, rocks buried 80 km beneath an ocean basin would normally be heated to what temperature?